Haynes˘ 25 / L605

Available in any of the 'profile options'

Haynes 25/L605 is a Cobalt-Nickel-Chromium-Tungsten alloy that combines good high temperature strength with good resistance to oxidising environments up to 980oC (1795oF) for long exposures. It also has excellent resistance to sulphidation.

Chemical Composition

Specifications

Designations

Key Features

Typical Applications

Element

Min %

Max %

C

0.05

0.15

Mn

1.00

2.00

Si

–

0.40

P

–

0.04

S

–

0.03

Cr

19.00

21.00

Ni

9.00

11.00

W

14.00

16.00

Fe

–

3.00

Co

bal

AMS 5796
AMS 5759
ASTM F90
BS HR 40
ISO 15156-3
(NACE MR 0175)

W.Nr 2.4964
UNS R30605
AWS 060

Good resistance to oxidising environments at high temperatures for long exposures
Excellent resistance to sulphidation
High temperature static applications**

Parts for gas turbine engines and bearings

Density

9.13 g/cm³

0.330 lb/in³

Melting Point

1410°C

2570°F

Coefficient of Expansion

12.3 μm/m °C (20 – 100°C)

6.8 x 10-6 in/in °F (70 – 212°F)

Modulus of Rigidity

98 kN/mm²

14214 ksi

Modulus of Elasticity

225 kN/mm²

32634 ksi

Heat Treatment of Finished Parts

Condition as supplied by Alloy Wire

Type

Temperature

Time (Hr)

Cooling

°C

°F

Annealed or Spring Temper

Stress Relieve

400 – 450

750 – 840

2

Air

Properties

Condition

Approx. tensile strength

Approx. operating temperature

N/mm²

ksi

°C

°F

Annealed

900 – 1500

131 – 218

-200 to +900

-330 to +1650

Spring Temper

1400 – 1800

203 – 261

-200 to +900

-330 to +1650

The above tensile strength ranges are typical. If you require different please ask.